A horizontal pull force of 35 N is required to just start a 6 kg box moving across a horizontal concrete floor. a) Draw the free-body diagram of the box, showing all of the forces acting on the box. b) What is the coefficient of static friction,µ, between the box and floor? c) The 35 N pull force continues, but now that the box is moving, it accelerates at constant a = 0.6 m/s². What is the coefficient of kinetic friction,μk?

College Physics
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Chapter4: Newton's Laws Of Motion
Section: Chapter Questions
Problem 74AP: (a) What is the minimum force of friction required to hold the system of Figure P4.74 in...
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6. A horizontal pull force of 35 N is required to just start a 6 kg box
moving across a horizontal concrete floor.
a) Draw the free-body diagram of the box, showing all of the
forces acting on the box.
b) What is the coefficient of static friction,μs, between the box
and floor?
c) The 35 N pull force continues, but now that the box is moving, it accelerates at constant
a = 0.6 m/s². What is the coefficient of kinetic friction,μk?
Transcribed Image Text:6. A horizontal pull force of 35 N is required to just start a 6 kg box moving across a horizontal concrete floor. a) Draw the free-body diagram of the box, showing all of the forces acting on the box. b) What is the coefficient of static friction,μs, between the box and floor? c) The 35 N pull force continues, but now that the box is moving, it accelerates at constant a = 0.6 m/s². What is the coefficient of kinetic friction,μk?
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